CA2275176C - Circuit d'attaque de tension d'electrode commune pour afficheur a cristaux liquides - Google Patents

Circuit d'attaque de tension d'electrode commune pour afficheur a cristaux liquides Download PDF

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Publication number
CA2275176C
CA2275176C CA002275176A CA2275176A CA2275176C CA 2275176 C CA2275176 C CA 2275176C CA 002275176 A CA002275176 A CA 002275176A CA 2275176 A CA2275176 A CA 2275176A CA 2275176 C CA2275176 C CA 2275176C
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CA
Canada
Prior art keywords
common electrode
display
liquid crystal
magnitude
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002275176A
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English (en)
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CA2275176A1 (fr
Inventor
Teddy J. Wood
Bill A. Dickey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Inc filed Critical Honeywell Inc
Publication of CA2275176A1 publication Critical patent/CA2275176A1/fr
Application granted granted Critical
Publication of CA2275176C publication Critical patent/CA2275176C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0204—Compensation of DC component across the pixels in flat panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0252—Improving the response speed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)

Abstract

La présente invention concerne un circuit de commande fournissant une tension d'électrode commune à un afficheur à cristaux liquides et régulant la tension appliquée à l'électrode commune en fonction de différents facteurs affectant la capacitance dans la totalité de la couche de cristaux liquides. Le circuit de commande d'électrode commune ajuste dynamiquement la tension d'électrode commune en fonction des tensions maximale et minimale courantes d'affichage. En outre, le circuit de commande d'électrode commune ajuste la tension de l'électrode commune en fonction, non seulement de la capacitance parasite grille-à-grille, mais également des fluctuations de température. Cela permet au circuit de commande de corriger les facteurs les plus importants susceptibles de provoquer l'accumulation indésirable de charge dans la totalité de la couche de cristaux liquides.
CA002275176A 1996-12-31 1997-11-18 Circuit d'attaque de tension d'electrode commune pour afficheur a cristaux liquides Expired - Fee Related CA2275176C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/775,433 1996-12-31
US08/775,433 US5926162A (en) 1996-12-31 1996-12-31 Common electrode voltage driving circuit for a liquid crystal display
PCT/US1997/021283 WO1998029858A1 (fr) 1996-12-31 1997-11-18 Circuit d'attaque de tension d'electrode commune pour afficheur a cristaux liquides

Publications (2)

Publication Number Publication Date
CA2275176A1 CA2275176A1 (fr) 1998-07-09
CA2275176C true CA2275176C (fr) 2006-07-11

Family

ID=25104412

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002275176A Expired - Fee Related CA2275176C (fr) 1996-12-31 1997-11-18 Circuit d'attaque de tension d'electrode commune pour afficheur a cristaux liquides

Country Status (9)

Country Link
US (1) US5926162A (fr)
EP (1) EP1012819B1 (fr)
JP (1) JP4153562B2 (fr)
KR (1) KR100495759B1 (fr)
AU (1) AU5450598A (fr)
CA (1) CA2275176C (fr)
DE (1) DE69728067T2 (fr)
IL (1) IL130437A (fr)
WO (1) WO1998029858A1 (fr)

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KR100848092B1 (ko) * 2002-03-06 2008-07-24 삼성전자주식회사 액정 표시 장치 및 그의 구동 방법
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KR101056371B1 (ko) * 2004-09-08 2011-08-11 삼성전자주식회사 표시장치와, 이의 구동 방법 및 장치
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KR101222978B1 (ko) * 2006-06-29 2013-01-17 엘지디스플레이 주식회사 액정 표시장치의 구동장치 및 구동방법
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Also Published As

Publication number Publication date
JP2001507815A (ja) 2001-06-12
KR20000057671A (ko) 2000-09-25
CA2275176A1 (fr) 1998-07-09
IL130437A (en) 2003-07-31
DE69728067D1 (de) 2004-04-15
EP1012819B1 (fr) 2004-03-10
AU5450598A (en) 1998-07-31
DE69728067T2 (de) 2004-09-16
EP1012819A1 (fr) 2000-06-28
KR100495759B1 (ko) 2005-06-17
US5926162A (en) 1999-07-20
JP4153562B2 (ja) 2008-09-24
WO1998029858A1 (fr) 1998-07-09
IL130437A0 (en) 2000-06-01

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